FTP Automatic Post-Connect Commands

See more FTP Examples

Demonstrates the AutoFeat, AutoSyst, AutoOptsUtf8, and AutoXcrc properties, which control commands Chilkat issues automatically around connecting and transferring.

Background: Chilkat normally probes and adapts to a server on its own: AutoFeat discovers capabilities with FEAT, AutoSyst learns the OS type to parse legacy listings, and AutoOptsUtf8 enables UTF-8 filenames when the server advertises it. These are on by default and rarely worth changing. AutoXcrc is the exception worth enabling deliberately — it verifies each upload with the server's XCRC checksum, catching corruption automatically where supported.

Chilkat C Downloads

Download Chilkat for C

#include <C_CkFtp2.h>

void ChilkatSample(void)
    {
    BOOL success;
    HCkFtp2 ftp;

    success = FALSE;

    ftp = CkFtp2_Create();

    CkFtp2_putHostname(ftp,"ftp.example.com");
    CkFtp2_putUsername(ftp,"myFtpLogin");

    //  These auto-* properties control commands Chilkat sends automatically after connecting.  They
    //  are on/off by default as noted, and are rarely changed.

    //  AutoFeat (default TRUE): automatically send FEAT to discover server capabilities.
    CkFtp2_putAutoFeat(ftp,TRUE);

    //  AutoSyst (default TRUE): automatically send SYST after login to learn the server OS type.
    CkFtp2_putAutoSyst(ftp,TRUE);

    //  AutoOptsUtf8 (default TRUE): send OPTS UTF8 ON when the FEAT response advertises UTF8.
    CkFtp2_putAutoOptsUtf8(ftp,TRUE);

    //  AutoXcrc (default FALSE): request an XCRC checksum after each upload and treat a mismatch as
    //  a failure, giving automatic post-upload verification where the server supports XCRC.
    CkFtp2_putAutoXcrc(ftp,TRUE);

    //  Normally you would not hard-code the password in source.  You should instead obtain it
    //  from an interactive prompt, environment variable, or a secrets vault.
    CkFtp2_putPassword(ftp,"myPassword");

    success = CkFtp2_Connect(ftp);
    if (success == FALSE) {
        printf("%s\n",CkFtp2_lastErrorText(ftp));
        CkFtp2_Dispose(ftp);
        return;
    }

    printf("Connected with the configured automatic features.\n");

    success = CkFtp2_Disconnect(ftp);
    if (success == FALSE) {
        printf("%s\n",CkFtp2_lastErrorText(ftp));
        CkFtp2_Dispose(ftp);
        return;
    }



    CkFtp2_Dispose(ftp);

    }